Press



(No Model.)

v V. D. ANDERSON.

PRESS.

[ N0 5 5,526. Patented Sept. 4, 1894.

' I E I 2 r a B 9 2 5" 2mmnulnlilmmlllmnfllg I W Z) d 3 mum Witnesses:Inventor- Attorneyh UNITED STATES PATENT OFFICE.

VALERIUS D. ANDERSON, OF CLEVELAND, OHIO.

PRESS.

SPECIFICATION forming part of Letters Patent No. 525,526, datedSeptember 4, 1894. Application filed May 12,1894. Serial No. 510,999.(No model.)

for instance as shown and described in Letters Patent No. 474,802,granted to me on the 17th day of May, 1892.

The present invention relates especially to the construction of thechain, and is designed to secure a better action of the press by reasonof the gradual squeezing of the material from a point midway between theends of the lag and the cylinder, outward, with gradually increasingpressing surface.

Figure 1 is a perspective View, showing a short length of my improvedchain, and the sprocket wheels for driving the same. Fig. 2 is avertical longitudinal section of a press suitable to employ the improvedchain, many details of the press being omitted as unimportant in thepresent connection. Figs. 3 and 4 are, respectively, face and edge viewsof one of the lag chain sections; and Fig. 5, a cross section at a pointmidway between the ends of such section.

The chain is designed for, and is capable of, use in any and all pressesemploying lag chains, and it is to be understood, therefore, that I donot restrict myself to its application to the particular type of presshere indicated, or to any other special form of press, but forconvenience of description and illustration, 1 have shown it inconnection therewith.

The chain is composed of a series of plates or sections A, each ofV-form, and having upturned ends or flanges a, as shown in the severalfigures. Each plate or section is a counterpart of the others, andconsequently when assembled as indicated in Figs. 1 and 2, the point ofone section enters the recess or cavity of the next, and so onthroughout the series, as best indicated in Fig. l.

The sections Aare connected at their ends by links B, which are securedin place by shouldered pins b passing through the links and through theupturned cars a of the plates or sections A,the holes of the links beingsufficiently large to permit a perfectly free movement of the links uponthe studs or pins.

The projecting studs or pins are uniformly spaced, and are designed tobe acted upon by sprocket wheels 0, entering notches or seats in theperipheries of said wheels, and to be propelled thereby. These sprocketwheels are placed outside of and are independent of the drum or rollerDwhich sustains the chain.

The plates or sections A are curved in the direction of their travel toconform more or less nearly to the curvature of the drum or cylinderwith which they co-operate. This will be better understood uponreferring to Fig. 2, in which E indicates a main frame in which ismounted a drum or cylinder F, and a series of sliding boxes or blockssupporting the journals of a series of pressurelrollers G, which rollersare arranged in a semicircular group about the lower side of the drum orcylinder.

Motion being imparted to the sprocket wheels 0, the chain is caused tomove forward in the direction indicated by the arrow, and, owing to thepresence of material in the space between the chain and the drum, and tothe gradually decreasing width of said space, the motion of the chainimparts rotation to drum F. In this way the material passing between thechain and the drum is pressed or squeezed, as in the press described inmy aforesaid patent. Under the present construction, however, it isfound that with far less power to operate the machine, a greaterpressing effect is secured, owing to the peculiar form of the lags orsections A; for,it will be seen that as these lags or sections moveforward, their points receive the pressure, and as a consequence theentire pressure is at first received on a very small surface, and thelag is readily forced inward and caused to compress or squeeze thematerial. As the broader portion of the lag comes between the main frameor cylinder and a given roller, the preliminary squeezing having beenefiected by the point or forward end of the lag, the finishing pressureis easily given. Another reason why this particular form of lag begetssuch improved results is the fact that by squeezing from the centertoward the ends, the juices and matters expressed are caused to flowfrom ICO the center outward, and are not locked in bythe solidlycompressed matters at the ends,

but have a chance to escape.

Practical operation of both forms of press,

or of presses with both forms of chain, dem

present Having thus described my invention,what' I claim is- 1. A presschain or endless band, consisting of a series of lags A of substantiallyV-form, flexibly connected one to another.

2. The herein described chain or belt for presses, consisting of aseries of lags-orplates A of substantially V-form, and connecting linksB applied to their ends substantially asshown and described.

3. A chain or pressure band for presses, consisting of a series of lagsA of substantially V- form, provided with upturned ends or flanges, andconnected at their ends by links, substantially as shown and described.

4. In a press, a chain or belt consisting of a series of lags orsections of substantially V- form flexibly connected, the forward end'ofone section extending into the rear side or end of the next preceding toa considerable distance beyond the pivots connecting the two.

In witness whereof I hereunto set my hand in the presence of twowitnesses.

VALERIUS D. ANDERSON.

Witnesses:

A. D. ANDERSON, WM. H. DE Wrrr.

